JP2009160581A - 光触媒体およびその製造方法 - Google Patents
光触媒体およびその製造方法 Download PDFInfo
- Publication number
- JP2009160581A JP2009160581A JP2009054657A JP2009054657A JP2009160581A JP 2009160581 A JP2009160581 A JP 2009160581A JP 2009054657 A JP2009054657 A JP 2009054657A JP 2009054657 A JP2009054657 A JP 2009054657A JP 2009160581 A JP2009160581 A JP 2009160581A
- Authority
- JP
- Japan
- Prior art keywords
- photocatalyst
- photocatalyst particles
- titanium oxide
- substrate
- hardly decomposable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 150
- 239000002131 composite material Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title description 32
- 239000002245 particle Substances 0.000 claims abstract description 105
- 239000000758 substrate Substances 0.000 claims abstract description 45
- 239000002904 solvent Substances 0.000 claims abstract description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 88
- 239000011230 binding agent Substances 0.000 claims description 85
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 82
- 239000008199 coating composition Substances 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 7
- 239000003463 adsorbent Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 claims description 4
- 239000000203 mixture Substances 0.000 abstract description 25
- 239000000853 adhesive Substances 0.000 abstract description 8
- 230000001070 adhesive effect Effects 0.000 abstract description 8
- 238000000576 coating method Methods 0.000 abstract description 7
- 239000011248 coating agent Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 230000002085 persistent effect Effects 0.000 abstract 3
- 230000001699 photocatalysis Effects 0.000 description 28
- 239000004568 cement Substances 0.000 description 23
- 239000011521 glass Substances 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 229920000642 polymer Polymers 0.000 description 13
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 12
- 239000002002 slurry Substances 0.000 description 12
- -1 enamel frit Substances 0.000 description 11
- 239000000126 substance Substances 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 10
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 9
- 229910052731 fluorine Inorganic materials 0.000 description 9
- 239000011737 fluorine Substances 0.000 description 9
- 229920002313 fluoropolymer Polymers 0.000 description 9
- 239000013585 weight reducing agent Substances 0.000 description 9
- 229920001577 copolymer Polymers 0.000 description 8
- 239000004811 fluoropolymer Substances 0.000 description 8
- 229910010413 TiO 2 Inorganic materials 0.000 description 7
- 150000002506 iron compounds Chemical class 0.000 description 7
- 150000002736 metal compounds Chemical class 0.000 description 7
- 229910000349 titanium oxysulfate Inorganic materials 0.000 description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 239000007822 coupling agent Substances 0.000 description 6
- 230000003301 hydrolyzing effect Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000003973 paint Substances 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 241000195493 Cryptophyta Species 0.000 description 5
- 239000003431 cross linking reagent Substances 0.000 description 5
- 239000012948 isocyanate Substances 0.000 description 5
- 150000002513 isocyanates Chemical class 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 5
- 229920002554 vinyl polymer Polymers 0.000 description 5
- 150000003752 zinc compounds Chemical class 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010335 hydrothermal treatment Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000001678 irradiating effect Effects 0.000 description 4
- 230000004580 weight loss Effects 0.000 description 4
- 239000010457 zeolite Substances 0.000 description 4
- 229920000877 Melamine resin Polymers 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000011505 plaster Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000010954 inorganic particle Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 230000001443 photoexcitation Effects 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 150000003609 titanium compounds Chemical class 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 241000186361 Actinobacteria <class> Species 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241000252229 Carassius auratus Species 0.000 description 1
- CCPHAMSKHBDMDS-UHFFFAOYSA-N Chetoseminudin B Natural products C=1NC2=CC=CC=C2C=1CC1(SC)NC(=O)C(CO)(SC)N(C)C1=O CCPHAMSKHBDMDS-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000007611 bar coating method Methods 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000011508 lime plaster Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007763 reverse roll coating Methods 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- GROMGGTZECPEKN-UHFFFAOYSA-N sodium metatitanate Chemical compound [Na+].[Na+].[O-][Ti](=O)O[Ti](=O)O[Ti]([O-])=O GROMGGTZECPEKN-UHFFFAOYSA-N 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/38—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0219—Coating the coating containing organic compounds
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
- C03C17/007—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character containing a dispersed phase, e.g. particles, fibres or flakes, in a continuous phase
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
- C03C17/23—Oxides
- C03C17/25—Oxides by deposition from the liquid phase
- C03C17/256—Coating containing TiO2
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3405—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of organic materials
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
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Abstract
【解決手段】難分解性結着剤を可溶な溶媒に分散させた塗料組成物を用いて光触媒粒子を基体上に接着させる。難分解性結着剤はポリオルガノシロキサンを含み、光触媒粒子の量は、光触媒粒子と難分解性接着剤との合量に対する容積基準で20−98%である。塗料組成物は、基体に塗布しあるいは吹き付け、室温〜200℃の温度で乾燥する。
【選択図】図1
Description
すなわち、本発明は光触媒粒子をあらゆる基体上に、その光触媒機能を損なうことなく、強固に、かつ、長期間にわたって接着させた光触媒体を提供することにある。
硫酸チタニルを加熱加水分解して得た酸性チタニアゾル(石原産業株式会社製、CS−N)に水酸化ナトリウムを加えpH7に調節した後濾過、洗浄を行なった。次いで、得られた酸化チタン湿ケーキに水を加え、TiO2に換算して100g/lのスラリーを調製した。このスラリーに水酸化ナトリウムを加えpH10に調節した後、オートクレーブで150℃の温度で3時間水熱処理を行なった。次いで、水熱処理後のスラリーに硝酸を加えpH7に中和し、濾過、水洗を行なった後、110℃の温度で3時間乾燥させて酸化チタンを得た。
次に、以下に示す組成の混合物をペイントシェイカーで3時間振とうして充分混合し、分散させて塗料組成物を得た。なお、下記のルミフロンLF200Cは、ビニルエーテルとフルオロオレフィンとのコポリマーを主成分としたフッ素系ポリマーである。
酸化チタン 9.80g
フッ素系ポリマー(旭ガラス社製、ルミフロンLF200C) 0.80g
イソシアネート系硬化剤 0.16g
チタンカップリング剤(味の素社製、プレーンアクト338X) 1.00g
トルエン 23.60ml
前記組成の塗料組成物を20cm2のガラス板に塗布した後、120℃の温度で20分間乾燥させて、本発明の光触媒体(試料A)を得た。この試料Aの酸化チタン含有量は、該酸化チタンと難分解性結着剤との合量に対する容積基準で90%であった。
実施例1で使用したものと同一の酸化チタンを以下に示す組成の混合物としてペイントシェイカーで3時間振とうして充分混合し、分散させて塗料組成物を得た。
酸化チタン 7.64g
フッ素系ポリマー(旭ガラス社製、ルミフロンLF200C) 2.36g
イソシアネート系硬化剤 0.47g
チタンカップリング剤(味の素社製、プレーンアクト338X) 0.76g
トルエン 22.50ml
前記組成の塗料組成物を20cm2のガラス板に塗布した後、120℃の温度で20分間乾燥させて、本発明の光触媒体(試料B)を得た。この試料Bの酸化チタン含有量は、該酸化チタンと難分解性結着剤との合量に対する容積基準で70%であった。
実施例1で使用したものと同一の酸化チタンを以下に示す組成の混合物としてペイントシェイカーで1時間振とうして充分混合し、分散させて塗料組成物を得た。
酸化チタン 9.8g
ポリオルガノシロキサン系無機結着剤
(日本合成ゴム社製、T2202AとT2202Bの3:1混合品) 2.7g
イソプロピルアルコール 21.5ml
前記組成の塗料組成物を20cm2のガラス板に塗布した後、180℃で10分間乾燥させて、本発明の光触媒体(試料C)を得た。この試料Cの酸化チタン含有量は、該酸化チタンと難分解性結着剤との合量に対する容積基準で90%であった。
硫酸チタニルを加熱加水分解して得た酸性チタニアゾル(石原産業株式会社製、CS−N)に水酸化ナトリウムを加えpH7に調節した後濾過、洗浄を行なった。次いで、得られた酸化チタン湿ケーキを110℃の温度で3時間乾燥させて酸化チタンを得た。
次に、以下に示す組成の混合物としてペイントシェイカーで3時間振とうして充分混合し、分散させて塗料組成物を得た。
酸化チタン 7.0g
ポリオルガノシロキサン系無機結着剤
(日本合成ゴム社製、T2202AとT2202Bの3:1混合品) 4.3g
イソプロピルアルコール 22.5ml
前記組成の塗料組成物を20cm2のガラス板に塗布した後、180℃で10分間乾燥させて、本発明の光触媒体(試料D)を得た。この試料Dの酸化チタン含有量は、該酸化チタンと難分解性結着剤との合量に対する容積基準で80%であった。
実施例1で使用したものと同一の酸化チタンを以下に示す組成の混合物としてペイントシェイカーで1時間振とうして充分混合し、分散させて塗料組成物を得た。
酸化チタン 9.8g
酢酸ビニル−アクリルコポリマー
(大日本インキ化学工業社製、ボンコート6290) 0.7g
水 24.8ml
前記組成の塗料組成物を20cm2のガラス板に塗布した後、120℃で10分間乾燥させて、光触媒体(試料E)を得た。この試料Eの酸化チタン含有量は、該酸化チタンと結着剤との合量に対する容積基準で90%であった。
硫酸チタニルを加熱加水分解して得た酸性チタニアゾル(石原産業株式会社製、CS−C)に水酸化ナトリウムを加えてpH7に調節した後、濾過、洗浄、乾燥し、次いで粉砕して酸化チタンを得た。この酸化チタン0.2g、白色セメント(小野田セメント株式会社製)0.8g、水0.7gとを混合し、面積50cm2のガラス板に全量塗布し、室温で乾燥して光触媒体(試料F)を得た。この試料Fの酸化チタン含有量は、該酸化チタンと難分解性結着剤との合量に対する容積基準で17%であった。
実施例5において、白色セメントに代えてデンカハイアルミナセメント(電気化学工業株式会社製、Hi)を0.8g用いること以外は、実施例5と同様にして本発明の光触媒体(試料G)を得た。この試料Gの酸化チタン含有量は、該酸化チタンと難分解性結着剤との合量に対する容積基準で17%であった。
実施例5で使用した白色セメント1.0gと水0.7gとを混合し、面積50cm2のガラス板に全量塗布し、室温で乾燥して試料Hを得た。
実施例6で使用したデンカハイアルミナセメント(Hi)1.0gと水0.7gとを混合し、面積50cm2のガラス板に全量塗布し、室温で乾燥して試料Iを得た。
実施例1の方法に準じて得た塗料組成物を面積100cm2の透明アクリル板に全量塗布し、120℃の温度で20分間乾燥して本発明の光触媒体(試料J)を得た。この試料Jの酸化チタン含有量は、該酸化チタンと難分解性結着剤との合量に対する容積基準で90%であった。
実施例7で使用した透明アクリル板を試料Kとした。
2週間飼育した時点で、比較例4の試料Kの表面には藻類の付着が認められたのに対し、実施例7の試料Jの表面には藻類の付着は認められなかった。これは実施例7の試料Jの表面では藻類が付着しても直ちに光触媒機能により藻類を分解するためである。なお、前記方法で試料J中のフッ素系ポリマーの重量減少を測定したところ、重量減少は認められず、フッ素系ポリマーは分解されなかった。
実施例7において、以下に示す組成の混合物をペイントシェイカーで1時間振とうして充分混合し、分散させて得た塗料組成物をスピンコーター(1000r.p.m.×10秒)で透明アクリル板に全量塗布して、該透明アクリル板上に、難分解性結着剤からなる、光触媒粒子を含有しない第一層を設けた基体を用いたこと以外は、実施例7と同様に処理して、本発明の光触媒体(試料L)を得た。この試料Lの第二層中の光触媒粒子である酸化チタン含有量は、該酸化チタンと難分解性結着剤との合量に対する容積基準で90%であった。
光触媒機能を有さない酸化チタン(CR−90、石原産業社製) 3.3g
フッ素系ポリマー(旭ガラス社製、ルミフロンLF200C) 5.5g
イソシアネート系硬化剤 1.1g
トルエン 20.7ml
実施例1において、酸化チタンに代えて、亜鉛化合物を担持した酸化チタンを用いたこと以外は、実施例1と同様に処理して、本発明の光触媒体(試料M)を得た。この試料M中の亜鉛化合物を担持した酸化チタン光触媒粒子の含有量は、該光触媒粒子と難分解性結着剤との合量に対する容積基準で90%であった。
なお、亜鉛化合物を担持した酸化チタンは次のようにして調製した。
硫酸チタニルを加熱加水分解して得た酸化チタンのスラリーに水と水酸化ナトリウムを加えて、pHが10であって、TiO2に換算して100g/lのスラリーとした。このスラリーをオートクレーブで150℃の温度で5時間水熱処理を行った後、硝酸で中和し、濾過、水洗を行った。得られた酸化チタン湿ケーキに水を加え、TiO2に換算して100g/lのスラリーに調製した後、塩酸を添加して、スラリーのpHを4とした。このスラリー1リットルに対し、攪拌下、1mol/lの塩化亜鉛水溶液7.2mlを滴下し、次いで2Nの水酸化ナトリウムで中和した後、濾過、水洗を行い、その後120℃の温度で16時間乾燥し、粉砕して、亜鉛化合物を担持した酸化チタンを得た。この酸化チタンには、ZnO:TiO2=1:99の量の亜鉛化合物をその酸化チタンの表面に含有していた。
実施例1において、酸化チタンに代えて、鉄化合物を担持した酸化チタンを用いたこと以外は、実施例1と同様に処理して、本発明の光触媒体(試料N)を得た。この試料N中の鉄化合物を担持した酸化チタン光触媒粒子の含有量は、該光触媒粒子と難分解性結着剤との合量に対する容積基準で90%であった。
なお、鉄化合物を担持した酸化チタンは次のようにして調製した。
硫酸チタニルを加熱加水分解して得た酸化チタン10gをTiO2に換算して100g/lのスラリーを調整した。このスラリーに塩化鉄(FeCl3・6H2O)の5g/l水溶液を2.9ml添加し、1時間攪拌した後、希アンモニア水を加えpH7に調節した。次いで、前記スラリーを1時間攪拌した後、濾過、水洗し、110℃の温度で3時間乾燥して、鉄化合物を担持した酸化チタンを得た。この酸化チタンには、Fe/TiO2=300ppmの量の鉄化合物をその酸化チタンの表面に含有していた。
実施例10において、塩化鉄水溶液の濃度を50g/lにしたこと以外は、実施例10と同様に処理して、本発明の光触媒体(試料O)を得た。この試料O中の鉄化合物を担持した酸化チタン光触媒粒子の含有量は、該光触媒粒子と難分解性結着剤との合量に対する容積基準で90%であった。この酸化チタンには、Fe/TiO2=3000ppmの量の鉄化合物をその酸化チタンの表面に含有していた。
実施例1において、酸化チタン8.9g、吸着剤として活性炭0.5gを含有した塗料組成物としたこと以外は実施例1と同様に処理して、本発明の光触媒体(試料P)を得た。この試料Pの酸化チタンと活性炭の合計の含有量は、酸化チタン、活性炭および難分解性結着剤との合量に対する容積基準で90%であった。
実施例12において、活性炭に代えてゼオライト0.8gを用いたこと以外は実施例12と同様に処理して、本発明の光触媒体(試料Q)を得た。この試料Qの酸化チタンとゼオライトの合計の含有量は、酸化チタン、ゼオライトおよび難分解性結着剤との合量に対する容積基準で90%であった。
また、本発明の光触媒体の製造方法は、プラスチックなどあらゆる材質のものを基体として用いることができ、しかも、簡便、かつ、容易に安定した品質の光触媒体を製造できるなど有用な方法である。
さらに、本発明の塗料組成物は、あらゆる形状の基体や基体の必要箇所に塗布しあるいは吹き付けることができ、その光触媒機能を手軽に利用することができるなど、特に一般家庭用としても有用なものである。
Claims (5)
- 少なくとも光触媒粒子と難分解性結着剤とを、該難分解性結着剤を可溶な溶媒に分散させた塗料組成物を用いて光触媒粒子を基体上に接着させてなる光触媒体であって、難分解性結着剤がポリオルガノシロキサンを含み、光触媒粒子の量が、光触媒粒子と難分解性結着剤との合量に対する容積基準で20〜98%である塗料組成物を基体に塗布しあるいは吹き付け、室温〜200℃の温度で乾燥し200℃よりも高い温度の加熱処理を行わずに光触媒粒子を接着することを特徴とする光触媒体。
- 塗料組成物にさらに吸着剤を含有させて、光触媒粒子と吸着剤とを基体上に接着することを特徴とする請求項1に記載の光触媒体。
- 光触媒体が酸化チタン、含水酸化チタン、水和酸化チタン、メタチタン酸、オルトチタン酸、水酸化チタンからなる群より選ばれる少なくとも一種であることを特徴とする請求項1に記載の光触媒体。
- 少なくとも光触媒粒子と難分解性結着剤とを、該難分解性接着剤を可溶な溶媒に分散させた塗料組成物を用いて光触媒粒子を基体上に接着させてなる、光触媒体の製造方法であって、難分解性結着剤がポリオルガノシロキサンを含み、光触媒粒子の量が、光触媒粒子と難分解性結着剤との合量に対する容積基準で20〜98%である塗料組成物を基体に塗布しあるいは吹き付け、室温〜200℃の温度で乾燥し200℃よりも高い温度の加熱処理を行わずに光触媒粒子を接着することを特徴とする光触媒体の製造方法。
- 少なくとも光触媒粒子と難分解性結着剤とを、該難分解性結着剤を可溶な溶媒に分散させてなる塗料組成物であって、難分解性結着がポリオルガノシロキサンを含み、光触媒粒子の量が、光触媒粒子と難分解性結着剤との合量に対する容積基準で20〜98%である塗料組成物を基体に塗布しあるいは吹き付け、室温〜200℃の温度で乾燥し200℃よりも高い温度の加熱処理を行わずに光触媒粒子を接着するために用いられることを特徴とする塗料組成物。
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JP7073108B2 (ja) | 2015-02-11 | 2022-05-23 | ベネター マテリアルズ ユーケー リミテッド | 被覆生産物 |
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